Drill pipe threads are not cleaned in that way.

钻杆丝扣不是那样清洗的。

youdao

If the drill pipe threads become rusty, rust will have to be cleaned.

如果钻杆丝扣生锈，必须清除掉。

youdao

If the drill pipe threads become rusty, rust will have to be cleaned.

如果钻杆丝扣生锈，必须清除掉。

youdao